Middle to late Miocene growth of the North Pamir

Li, Lin and Dupont-Nivet, Guillaume and Najman, Yani and Kaya, Mustafa and Meijer, Niels and Poujol, Marc and Aminov, Jovid (2022) Middle to late Miocene growth of the North Pamir. Basin Research, 34 (2). pp. 533-554. ISSN 0950-091X

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How and when the Pamir formed remains an open question. This study explores Pamir tectonics recorded in a sedimentary section in the eastern Tajik Basin. A prominent lithofacies change that has been recognized regionally is assigned to the middle Miocene (13.5 Ma based on preferred magnetostratigraphic correlation). Closely following this change, detrital zircon U-Pb age spectra and mudstone bulk-rock Nd values exhibit a sediment source change from the Central to the North Pamir estimated ca. 12 Ma. At the same time, the stable oxygen and carbon isotopic values of carbonate cements show negative and positive shifts, respectively. Combined with previous studies in both the Tajik and Tarim basins, these results suggest that the North Pamir experienced a middle–late Miocene phase of deformation and surface uplift. This supports models proposing middle–late Miocene Pamir tectonism, and climate models implying that coeval Pamir orogenesis deflected Westerly moisture and affected Asian environments.

Item Type:
Journal Article
Journal or Publication Title:
Basin Research
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This is the peer reviewed version of the following article: Li, L., Dupont-Nivet, G., Najman, Y., Kaya, M., Meijer, N., Poujol, M., & Aminov, J. (2022). Middle to late Miocene growth of the North Pamir. Basin Research, 34, 533– 554. doi:10.1111/bre.12629 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1111/bre.12629. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for self-archiving.
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16 Feb 2022 14:05
Last Modified:
20 Sep 2023 01:46